No.6 LIFTGATE TURNS OVER OPERATION AND PLG BUZZER SOUNDS 1 TIME, WHILE AUTO OPEN/CLOSE FUNCTION [POWER LIFTGATE (PLG) SYSTEM]

id0903c9999400

6

Liftgate reverses and PLG buzzer sounds 1 time, while auto open/close function
DESCRIPTION
•  Liftgate reverses while auto open or close operation without object is pinched, the switches (PLG front switch, PLG rear switch and/or transmitter) are operated and/or liftgate outer handle is operated.
•  PLG buzzer sounds 1 time when the liftgate reverses.
POSSIBLE CAUSE
•  Start trigger signal temporary error
―  Malfunction in PLG front switch related part
•  PLG front switch malfunction
•  Short to ground in wiring harness between PLG front switch and PLG control module
―  Malfunction in PLG rear switch related part
•  PLG rear switch malfunction
•  Short to ground in wiring harness between PLG rear switch and PLG control module
―  Malfunction in liftgate outer handle switch related part
•  Liftgate outer handle switch related part
•  Short to ground circuit in wiring harness between liftgate outer handle switch and PLG control module
―  Malfunction in keyless entry system
•  PLG control module malfunction

When performing an asterisked (*) troubleshooting inspection, slightly shake the wiring harness and connectors while performing the inspection to discover whether poor contact points are the cause of any intermittent malfunctions. If there is a problem, verify that the connectors, terminals and wiring harnesses are connected correctly and undamaged.

Diagnostic procedure

STEP

INSPECTION

ACTION
1
INSPECT PLG FRONT SWITCH
•  Inspect the PLG front switch.
•  Is the PLG front switch normal?
Yes
Go to the next step.
No
Replace the PLG front switch.
(See POWER LIFTGATE (PLG) FRONT SWITCH REMOVAL/INSTALLATION.)
2*
INSPECT WIRING HARNESS BETWEEN PLG FRONT SWITCH AND PLG CONTROL MODULE
•  Turn the ignition switch to LOCK position.
•  Disconnect the PLG front switch and PLG control module connectors.
•  Inspect for short to ground circuit between PLG front switch terminal C and PLG control module terminal 3Q.
•  Is the short to ground circuit detected?
Yes
Repair or replace malfunctioning part.
No
Go to the next step.
3
INSPECT PLG REAR SWITCH
•  Inspect the PLG rear switch.
•  Is the PLG rear switch normal?
Yes
Go to the next step.
No
Replace the PLG rear switch.
(See POWER LIFTGATE (PLG) REAR SWITCH REMOVAL/INSTALLATION.)
4*
INSPECT WIRING HARNESS BETWEEN PLG REAR SWITCH AND PLG CONTROL MODULE
•  Turn the ignition switch to LOCK position.
•  Disconnect the PLG rear switch and the PLG control module connectors.
•  Inspect for short to ground circuit between PLG rear switch terminal C and PLG control module terminal 2B.
•  Is the short to ground circuit detected?
Yes
Repair or replace malfunctioning part.
No
Go to the next step.
5
INSPECT LIFTGATE OUTER HANDLE SWITCH
•  Inspect the liftgate outer handle switch.
•  Is the liftgate outer handle switch normal?
Yes
Go to the next step.
No
Replace the liftgate outer handle.
Note
•  The liftgate outer handle switch is integrated with the liftgate outer handle.
(See LIFTGATE OUTER HANDLE REMOVAL/INSTALLATION.)
6*
INSPECT WIRING HARNESS BETWEEN LIFTGATE OUTER HANDLE SWITCH AND PLG CONTROL MODULE
•  Turn the ignition switch to LOCK position.
•  Disconnect the liftgate outer handle switch and the PLG control module connectors.
•  Inspect for short to ground circuit between liftgate outer handle switch and PLG control module.
•  Is the short to ground circuit detected?
Yes
Repair or replace malfunctioning part.
No
Go to the next step.
7
INSPECT KEYLESS ENTRY SYSTEM OPERATION
•  Inspect the keyless system operation.
•  Does the keyless entry system operate properly?
Yes
Replace the PLG control module.
(See POWER LIFTGATE (PLG) CONTROL MODULE REMOVAL/INSTALLATION.)
No
Perform the keyless entry symptom troubleshooting procedure.
(See SYMPTOM TROUBLESHOOTING CHART [KEYLESS ENTRY SYSTEM].)
(See SYMPTOM TROUBLESHOOTING CHART [ADVANCED KEYLESS ENTRY AND START SYSTEM].)